It’s 7 because you round it
Answer:
25
Step-by-step explanation:
3a=30... equation 1
2a+2b=30... equation2
equation 2 => a+b=15 ... equation 3
equation 1 => a = 10 ... equation 4
equation 4 & equation 3 => b = 5
5^2 = 25
Answer:

The answer should have positive sign.
Step-by-step explanation:
First you do is divide by -6 from both sides of an equation.

Then, simplify and solve the problem.


Next, you switch sides.

You subtract by 2 from both sides of an equation./

Finally, solve/simplify.

A=6 is the correct answer.
Hope this helps you!
Have a nice day! :)
Answer:
What is the value of 4 + 5x when x = 3?
d. 19
Step-by-step explanation:
= 4 + 5(3)
= 4 + 15
= 19
Answer:
one is for structure, two is for being able to move around, and three is to cover joints or sum like that
Step-by-step explanation: